Yahoo! Inc.

Matthew E Lewin

Udi Manber

David Hikaru Nakayama

Brian R Woods

Ravichandran Menon Jayachandran

Geoffrey D Ralston

The invention relates to processing similar electronic text communication. In one step, a first electronic and a second electronic submission, that are part of a plurality of electronic submissions, are received. A first portion is extracted from the first electronic submission and a second portion from the second electronic submission. Content of the first electronic submission influences extraction of the first portion and content of the second electronic submission influences extraction of the second portion. Locations for the first and second portions could vary with content. A first code is determined for the first portion and a second code for the second portion, where the first code is indicative of the first portion and the second code is indicative of the second portion. The first code to the second code are compared to associate the first and second electronic submission together.

Automated bulk communication responder

The invention relates to processing of electronic text communication distributed in bulk. In one embodiment, a method for detecting electronic text communication distributed in bulk is disclosed. After receiving a first electronic text communication, it is processed with an algorithm to produce a first fingerprint. A time period is begun for the first electronic text communication. After receiving a second electronic text communications, it is also processed with the algorithm to produce a second fingerprint. The first fingerprint to the second fingerprint are compared to determine if the first electronic text communication is similar to the second electronic text communication. A count for the first electronic text communication is updated based upon the comparison. It is determined if the count during the time period reaches a first threshold.

Processing of unsolicited bulk electronic communication

The invention relates to processing of electronic text communication distributed in bulk. In one embodiment, a process for blocking electronic text communication distributed in bulk is disclosed. In the process, a first electronic and a second electronic submission are received. A first portion is extracted from the first electronic submission and a second portion is extracted from the second electronic submission. A first code is determined for the first portion and a second code is determined for the second portion. The first code is indicative of the first portion and the second code is indicative of the second portion. After the first code is compared to the second code, the second electronic submission is filtered in response to that comparison.

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Santa Clara, CA, United States of America

Matthew E Lewin